well for most of you guys your just as well to get the kits. total cost about 1700$
it comes with tank injectors lines instructions, a ecm, gauge switch and so on.
those would not be liquid injection kits so probably not as much power. but you could just switch to gas when you want the extra power.

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Now that's thinking out of the boxer!
fyi all 05 + legacy's have built in code reader